Quantitative Aptitude - Arithmetic Ability Questions

If secA/√(sec2A ­- 1) = x, then value of x is

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 9 cm, 6 cm and 5.4 cm respectively find length of BC?

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x-axis to (-3,4). The co-ordinates of point R are

129 meter from the foot of a cliff on level of ground, the angle of elevation of the top of a cliff is 30°. The height of this cliff is

If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)

Select the odd letters from the given alternatives.

In the following question, select the odd word from the given alternatives.

What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?